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Lighting device with bendable organic light-emitting diode region lighting source and lighting apparatus

A technology of light-emitting diodes and lighting devices, applied in lighting devices, lighting auxiliary devices, fixed lighting devices, etc., can solve problems such as non-compliant light-emitting elements, and achieve the effect of saving storage space

Inactive Publication Date: 2003-12-17
EASTMAN KODAK CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing solid-state lighting elements can be planar and thus easily and cost-effectively transported, but do not meet the need for lighting elements having the variety of conventional three-dimensional shapes found, for example, in decorative light bulbs

Method used

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  • Lighting device with bendable organic light-emitting diode region lighting source and lighting apparatus
  • Lighting device with bendable organic light-emitting diode region lighting source and lighting apparatus
  • Lighting device with bendable organic light-emitting diode region lighting source and lighting apparatus

Examples

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Embodiment Construction

[0025] FIG. 1 is a schematic diagram of a prior art OLED light source 10 that includes an organic light-emitting layer 12 disposed between two electrodes, such as cathode 14 and anode 16 . The organic light-emitting layer 12 emits light by applying a voltage between the electrodes by the power source 18 . The OLED light source 10 typically includes a glass or plastic substrate 20, for example. It should be understood that the relative positions of anode 16 and cathode 14 may be reversed with respect to the substrate. The term OLED light source refers to the combination of organic light emitting layer 12, cathode 14, anode 16, and other layers described below.

[0026] like figure 2 As shown, the solid state area illumination light source includes a flexible planar substrate 20, a flexible organic light emitting diode (OLED) layer 12 disposed on the flexible substrate, the organic light emitting diode layer including first and second power supply to the OLED layer Electrodes...

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PUM

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Abstract

Lighting apparatus includes a solid-state area illumination light source, having: a planar flexible substrate, a flexible organic light emitting diode (OLED) layer deposited on the flexible substrate, the organic light emitting diode layer including first and second electrodes for providing electrical power to the OLED layer, a flexible encapsulating cover covering the OLED layer, and first and second conductors electrically connected to the first and second electrodes, and extending beyond the encapsulating cover for making electrical contact to the first and second electrodes by an external power source, whereby the light source may be stored in a space saving planar configuration; and a lighting fixture for removably receiving and holding the light source in a curved 3 dimensional configuration, the lighting fixture including a support for holding the light source in the curved configuration and contacts for providing electrical contact between said first and second conductors and an external power source.

Description

technical field [0001] The present invention relates to the use of organic light emitting diodes for area lighting. Background technique [0002] Solid state light emitting devices made from light emitting diodes (LEDs) are increasingly useful in applications that require durability and long life. For example, solid-state LEDs have now found use in the automotive sector. These devices are typically formed by combining multiple small LED devices providing a point light source into a single component with a glass lens appropriately designed to control the light required for a particular application (see, for example, WO 99 / 57945, 11 November 1999 published today). These composite devices are expensive and difficult to manufacture and integrate into a single area lighting device. Furthermore, the point light source provided by the LED device is not a preferred light source for area lighting. [0003] Conventional lighting devices such as incandescent or fluorescent light bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50F21K99/00H01L51/52H05B33/02H05B33/04H05B33/06H05B33/12
CPCF21S6/002Y02B20/36F21V3/00H01L2251/5338F21Y2105/00H01R23/7068F21S6/005F21K9/135F21S6/00F21Y2101/02F21S8/04H01R12/721F21Y2105/008H01L2251/5361F21K9/00F21S6/004H01L51/5237F21V19/0005F21K9/232F21Y2115/15Y02B20/30H10K2102/311H05B33/00H10K50/841
Inventor R·S·科克
Owner EASTMAN KODAK CO
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